List of top Chemistry Questions on Oxidation-Reduction asked in TS EAMCET

\[ S_2O_3^{2-}(aq) + OH^{-}(aq) \rightarrow SO_4^{2-}(aq) + H_2O(l) + e^{-} \]  
After the above half reaction is balanced, which of the following are the coefficients of \(OH^{-}\) and \(SO_4^{2-}\) respectively?

$\text{KMnO}_4$ oxidizes $\text{M}^{2+}$ to $\text{M}^{4+}$ in acid medium. $500\text{ mL}$ of $0.02\text{M}$ $\text{M}^{2+}$ solution requires $500\text{ mL}$ of $x\text{ M}$ $\text{MnO}_4^-$ solution for complete oxidation. The value of $x$ is: